Updated

A New Hampshire woman accused of jumping out a second-story window with her 4-month-old twins, killing one and severely injuring the other, has pleaded not guilty by reason of insanity.

WMUR-TV reports (http://bit.ly/1E6i8vm) that 29-year-old Lyman resident Patina Welch told investigators there were men with guns in her house trying to kill her boy-girl twins and she was trying to save them.

Her son died. Her now-1-year-old daughter is out of the hospital.

A psychiatrist testified last month that Welch was diagnosed with schizoaffective disorder and was psychotic when she jumped last summer.

The attorney general's office says Welch has struggled with mental health problems since she was 13.

Welch is scheduled for a hearing April 8 to determine if she should be committed to the state secure psychiatric ward.

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Information from: WMUR-TV, http://wmur.com